Oracle触发无效

Question

我是新来的SQL，我试图创建一个插入到审计表的触发器。

create or replace trigger late_ship_insert 
    after insert on suborder 
    for each row 
declare 
    employee int; 
begin 
    select emp_id 
    into employee 
    from handles 
    where order_no = :new.order_no; 
    if :new.actual_ship_date > :new.req_ship_date then 
    insert into ship_audit 
     values (employee, :new.order_no, :new.suborder_no, :new.req_ship_date, :new.actual_ship_date); 
end; 

错误：

Warning: execution completed with warning 
trigger late_ship_insert Compiled. 

但是，一旦我尝试的INSERT语句它告诉我，触发没有工作，那么放弃它。

Error starting at line 1 in command: 
insert into suborder 
    values (8, 3, '10-jun-2012', '12-jul-2012', 'CVS', 3) 
Error at Command Line:1 Column:12 
Error report: 
SQL Error: ORA-04098: trigger 'COMPANY.LATE_SHIP_INSERT' is invalid and failed re-validation 
04098. 00000 - "trigger '%s.%s' is invalid and failed re-validation" 
*Cause: A trigger was attempted to be retrieved for execution and was 
      found to be invalid. This also means that compilation/authorization 
      failed for the trigger. 
*Action: Options are to resolve the compilation/authorization errors, 
      disable the trigger, or drop the trigger. 

任何想法是什么导致这一点，任何帮助将不胜感激。谢谢！

Answer 1

当你格式化你的代码是你的IF声明缺少END IF

create or replace trigger late_ship_insert 
    after insert on suborder 
    for each row 
declare 
    employee int; 
begin 
    select emp_id 
    into employee 
    from handles 
    where order_no = :new.order_no; 
    if :new.actual_ship_date > :new.req_ship_date then 
    insert into ship_audit 
     values (employee, :new.order_no, :new.suborder_no, :new.req_ship_date, :new.actual_ship_date); 
    end if; 
end; 

作为一般事项，你应该总是列表中的目标表的列在你的INSERT声明而变得显而易见的错误而不是依赖于您的INSERT语句为每列指定值并按正确顺序指定它们的事实。这会让你的代码更健壮，因为例如有人在表中添加额外的列时它不会失效。这将是这个样子（我在列的名称在ship_audit表猜测）

create or replace trigger late_ship_insert 
    after insert on suborder 
    for each row 
declare 
    employee int; 
begin 
    select emp_id 
    into employee 
    from handles 
    where order_no = :new.order_no; 
    if :new.actual_ship_date > :new.req_ship_date then 
    insert into ship_audit(emp_id, order_no, suborder_no, req_ship_date, actual_ship_date) 
     values (employee, :new.order_no, :new.suborder_no, :new.req_ship_date, :new.actual_ship_date); 
    end if; 
end;